One-step positioning processing device for split retainer

Abstract

The present invention discloses a one-time positioning processing device for a split retainer, the device comprises a tool fixing seat and a split retainer arranged on the tool fixing seat, a cover body is fixed on the tool fastening pull rod, the cover body comprises an outer cover body, an inner cover body, and a driving assembly, and a swivel assembly is arranged on the inner cover body. The present invention relates to the field of bearing retainer machining technology, during the lowering process of the cover body, the device can evenly distribute the downward pulling force when the tool fastening pull rod drives the cover body to lower in the circumference of the cover body through the rotation of the rotating body and the roller body that rotates when the rotating body rotates, so that the entire circumference of the cover body moves downward evenly and stably, preventing the offset of the cover body from causing damage to the split retainer. When processing the pocket of the split retainer, there is no need to remove the cover body and then press it down for assembly, and it can be directly rotated and radially pressed into the processed riveted column to ensure the coaxiality of the riveted column and the pocket, and improve the accuracy of the riveted column and the pocket on the split retainer.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing of bearing retainers, in particular to a one-time positioning processing device for a split retainer. Background Art

[0002] The traditional processing steps for bearing cages are:

[0003] Determine the radial position of the split cage - tighten the tooling fixing cover - mill the size of the split cage rivet column - loosen the tooling fixing cover - lift the tooling fixing cover - rotate the tooling fixing cover angle - determine the radial position of the split cage again - tighten the tooling fixing cover - mill the pocket hole size - loosen the tooling fixing cover.

[0004] The traditional processing steps have the problem that during the process of lowering and tightening the tooling fixing cover, the tooling fixing cover may deviate from the horizontal plane when it contacts the split retaining frame, and after continuous descent, the fitting surface between the tooling fixing cover and the split retaining frame may be deformed, and then the processing accuracy of the riveted column cannot be guaranteed. There is also the problem that when processing the pocket hole, the cover body needs to be lifted and then pressed down for a second time, so that the processing of the riveted column and the pocket hole is a two-step pressing process of the cover body, and then the circumferential relative position of the riveted column and the pocket hole cannot be guaranteed.

[0005] In the traditional processing, when switching between two different parts of the split cage, the circumferential relative positions of the riveted column and the pocket are likely to shift. Due to the irregular shape of the split cage, the position cannot be restored, which easily produces defective products and causes losses. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides a one-step positioning processing device for a split retainer, which solves the problem of defective products resulting from relative position shifting caused by secondary pressing during the processing switching of two different parts of the existing split retainer.

[0007] To achieve the above object, the present invention is implemented by the following technical scheme: a one-time positioning processing device for a split retainer, the device comprising a tool fixing seat and a split retainer arranged on the tool fixing seat, a tool fastening pull rod is arranged at the center of the tool fixing seat, a cover body is fixed on the tool fastening pull rod, and the cover body is separated from or buckled on the split retainer when the tool fastening pull rod is raised or lowered;

[0008] The cover body comprises:

[0009] An outer cover body, wherein a plurality of protrusions are arranged on the outer edge of the outer cover body, and a gap is formed between two adjacent protrusions;

[0010] The inner cover body is fixed on the tool fastening rod and is rotatably connected to the inner side of the outer cover body through a third rotating member; a rotating body assembly is arranged on the inner cover body, and the rotating body assembly includes a rotating body and a roller body arranged at the bottom of the rotating body, and the rotating body is rotatably connected to the inner cover body through a first rotating member;

[0011] A driving assembly has a first working point and a second working point; when the driving assembly is at the first working point, the driving assembly drives the swivel assembly to rotate, so that the downward pulling force when the tooling fastening rod drives the cover body to descend is evenly distributed on the cover body; when the driving assembly is at the second working point, the driving assembly drives the outer cover body to rotate on the inner cover body, so that the plurality of protrusions correspond one by one to the riveted columns or pockets of the split retaining frame.

[0012] Preferably, the driving assembly comprises:

[0013] A driving gear, wherein the driving gear is connected to a main shaft;

[0014] A first gear ring, fixed to the outer cover;

[0015] The second ring gear is fixed to the rotating body.

[0016] Preferably, the driving gear has a first gear surface surrounding its outer wall surface and a second gear surface located at its bottom surface; when the driving gear is in a first working point position, the first gear surface is meshed with the second gear ring, and when the driving gear is in a second working point position, the second gear surface is meshed with the first gear ring.

[0017] Preferably, the main shaft is connected to a power mechanism capable of driving the main shaft to rotate, and the power mechanism is connected to a lifting mechanism capable of driving the power mechanism to move up and down.

[0018] Preferably, an inner cover plate is fixed on the rotating body, an outer cover plate is fixed on the outer cover body, the inner cover plate and the outer cover plate are concentric and have clearance fit with each other; a locking piece is fixed on the top of the tooling fastening rod, and the locking piece is pressed against the inner cover plate;

[0019] The rotating body is rotatably connected to the inner cover plate through a second rotating member.

[0020] Preferably, a limit assembly is provided on the outer cover plate, and the limit assembly comprises:

[0021] A waist-shaped guide hole is formed on the outer cover plate;

[0022] A tooling positioning column, one end of which is inserted into the waist-shaped guide hole and the other end is fixed to the inner cover body;

[0023] The elastic member is embedded in one side of the middle part of the waist-shaped guide hole. A positioning member is fixed to the end of the elastic member, and the positioning member is pressed against the side wall surface of the tooling positioning column.

[0024] Preferably, a roller retainer is fixed in the rotating body, and the roller is limited and rotates in the roller retainer; the roller array is distributed in the roller retainer.

[0025] Preferably, the inner side and the outer side of the bottom surface of the rotating body are respectively formed with a first end surface and a second end surface at different levels, and the first end surface and the second end surface are connected by an inclined surface;

[0026] The roller body comprises a first roller body and a second roller body, wherein the first roller body is located at the first end surface, and the second roller body is located at the second end surface; wherein the length of the first roller body is longer than that of the second roller body and the diameter is smaller than that of the second roller body.

[0027] Preferably, the top surface of the inner cover body is provided with a groove adapted to the rotating body, and an annular plate is provided in the groove; the roller body abuts against the annular plate;

[0028] The annular plate comprises a first table surface and a second table surface which are arranged in a stepped shape, wherein the first table surface and the second table surface are connected via an inclined table surface; the first roller body acts on the first table surface, and the second roller body acts on the second table surface.

[0029] Preferably, a lifting mating surface is provided above the tooling fastening pull rod, and the bottom surface of the inner cover body abuts against the lifting mating surface.

[0030] Beneficial effects of the present invention: By using a one-time positioning processing device for a split retainer provided by the present invention, compared with the prior art, during the process of the cover body descending, the device can evenly distribute the downward pulling force of the tooling fastening rod when the cover body is driven to descend in the circumference of the cover body through the rotation of the rotating body and the roller body that rotates when the rotating body rotates, so that the entire circumference of the cover body moves downward evenly and stably, preventing the offset of the cover body from causing damage to the split retainer. When processing the pocket hole of the split retainer, there is no need to raise the cover body. By driving the outer cover body to rotate on the inner cover body, there is no need to remove the cover body and then press it down for assembly. It can be directly rotated and radially pressed into the processed riveted column to ensure the coaxiality of the riveted column and the pocket hole, improve the accuracy of the riveted column and the pocket hole on the split retainer, and improve the yield rate of the split retainer after processing. The rotation of the outer cover plate is limited by the limit component, so that it is convenient to confirm whether the rotation angle is in the ideal position. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is the front view of the present invention;

[0032] Figure 2 This is a state diagram of the split retainer riveted column being milled in the present invention;

[0033] Figure 3 This is a state diagram of the split cage pocket being milled in the present invention;

[0034] Figure 4 This is a front view of the cover body of the present invention;

[0035] Figure 5 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0036] Figure 6 It is a structural schematic diagram of the rotating body of the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the driving gear of the present invention;

[0038] Figure 8 It is a schematic diagram of the structure of the rotating body and the annular plate of the present invention.

[0039] Description of reference numerals in the figures

[0040] 1. Fixture fixing seat, 2. Split retainer, 3. Fixture fastening rod, 4. Outer cover, 5. Avoidance notch, 6. Inner cover, 7. First gear ring, 8. Drive gear, 81. First gear surface, 82. Second gear surface, 9. Spindle, 10. Locking member, 11. Inner cover, 12. Rotating body, 121. First end surface, 122. Inclined surface, 123. Second end surface, 13. Second gear ring, 14. Protrusion, 1 5. Positioning member, 16. Outer cover plate, 17. Tool positioning column, 18. Waist-shaped guide hole, 19. First rotating member, 20. Second rotating member, 21. Annular plate, 211. First table surface, 212. Inclined table surface, 213. Second table surface, 22. Lifting mating surface, 23. Roller body, 231. First roller body, 232. Second roller body, 24. Third rotating member, 25. Elastic member, 26. Roller body retainer. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. As long as the effects of the present invention can be exerted, various changes can be made to the implementation scheme.

[0042] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0043] Reference Figure 1-8 A one-time positioning processing device for a split retainer according to the present embodiment will be described.

[0044] like Figure 1 As shown, it includes a tool fixing seat 1 and a split holder 2 arranged on the tool fixing seat 1. A tool fastening rod 3 is arranged at the center of the tool fixing seat 1. The bottom of the tool fastening rod 3 is connected to a pneumatic device, specifically a cylinder, which can drive the tool fastening rod 3 to move up and down. A cover body is fixed on the tool fastening rod 3. When the tool fastening rod 3 is raised or lowered, the cover body is separated from or buckled on the split holder 2 to ensure the relative position stability during the processing.

[0045] like Figure 4 As shown, the cover body includes an outer cover body 4, an inner cover body 6 and a drive assembly.

[0046] like Figure 2 As shown, the outer edge of the outer cover 4 is provided with a plurality of protrusions 14, and a gap 5 is formed between two adjacent protrusions 14. The protrusions 14 correspond to the riveted columns of the split retainer 2, and the gap 5 corresponds to the pockets of the split retainer 2.

[0047] like Figure 4 As shown, a lifting mating surface 22 is provided above the tooling fastening rod 3, the inner cover 6 is fixed on the tooling fastening rod 3, and the bottom surface of the inner cover 6 abuts against the lifting mating surface 22. The inner cover 6 is rotatably connected to the inner side of the outer cover 4 through the third rotating member 24; a rotating body assembly is provided on the inner cover 6, and the rotating body assembly includes a rotating body 12 and a roller body 23 provided at the bottom of the rotating body 12, and the rotating body 12 is rotatably connected to the inner cover 6 through the first rotating member 19. A roller body retainer 26 is fixed inside the rotating body 12, and the roller body 23 is limited and rotates in the roller body retainer 26; the roller bodies 23 are distributed in the roller body retainer 26 in an array.

[0048] like Figure 4 As shown, the drive assembly has a first working point and a second working point. When the drive assembly is in the first working point, it drives the swivel assembly to rotate, and the downward pulling force of the tooling fastening rod 3 when driving the cover body to descend is evenly distributed around the circumference of the cover body during rotation through the rotating rotator 12 and the roller body 23 that rotates when the rotator 12 rotates, so that the entire circumference of the cover body moves downward evenly and stably, preventing the offset of the cover body from causing damage to the split retainer 2. When the drive assembly is in the second working point, it drives the outer cover body 4 to rotate on the inner cover body 6. There is no need to remove the cover body and then press it down for assembly. It can be directly rotated and radially pressed into the processed riveted column to ensure coaxiality and improve the accuracy of the riveted column and the pocket on the split retainer 2. Make a plurality of raised portions 14 correspond one by one to the riveted columns or pockets of the split retainer 2. After the cover body is lowered, the raised portions 14 correspond to the pockets (such as Figure 2After the processing is completed, the driving assembly drives the outer cover 4 to rotate on the inner cover 6, so that the protrusion 14 corresponds to the processed riveted column. At this time, the air-avoiding notch 5 corresponds to the pocket hole of the split retainer 2 (as shown in FIG. Figure 3 As shown in the figure, the pocket holes of the split retainer are milled. The method of pressing down once and then rotating is adopted to ensure that the riveted column and the pocket hole after processing can be coaxial, avoiding the situation that the riveted column and the pocket hole are not coaxial after the cover body is raised to adjust the direction of the cover body after processing the riveted column, and then pressing down to process the pocket hole, thereby ensuring the relative position stability during the processing and improving the yield rate of the split retainer 2 after processing.

[0049] like Figure 8 As shown, the inner and outer sides of the bottom surface of the rotating body 12 are respectively formed with a first end face 121 and a second end face 123 which are located at different horizontal planes, and the first end face 121 and the second end face 123 are connected by an inclined surface 122; the roller body 23 includes a first roller body 231 and a second roller body 232, the first roller body 231 is located at the first end face 121, and the second roller body 232 is located at the second end face 123; wherein, the length of the first roller body 231 is longer than that of the second roller body 232 and its diameter is smaller than that of the second roller body 232.

[0050] like Figure 4 and Figure 8 As shown, the top surface of the inner cover 6 is provided with a groove adapted to the rotating body 12, and an annular plate 21 is provided in the groove; the roller body 23 abuts against the annular plate 21. The annular plate 21 includes a first table 211 and a second table 213 arranged in a stepped shape, and the first table 211 and the second table 213 are connected by an inclined table 212; the first roller body 231 acts on the first table 211, and the second roller body 232 acts on the second table 213.

[0051] The roller bodies 23 are designed into two types and are located on different circumferences, so that the downward pulling force of the tooling fastening rod 3 can be evenly distributed to the side of the middle part of the inner cover body 6 through the first table 211 and the second table 21 of the annular plate 21. In addition, the first roller body 231 located in the inner ring and the second roller body 232 located in the outer ring receive the downward pressure in two places to ensure the stability of the inner cover body 6 when it descends. Since the length and diameter of the first roller body 231 and the second roller body 232 are different, the two roller bodies cooperate with each other, and the first roller body 231 transmits the downward pressure over a large area to improve stability; the second roller body 232 improves strength to prevent the thinner first roller body 231 from being in a state of stress for a long time and contacting with the annular plate 21 over a large area and deforming.

[0052] The surface of the annular plate 21 is smooth, so that the roller body 23 can rotate and roll on the surface stably, and prevent the rotating body 12 from bouncing and causing the downward pressure to deviate, and the cover body from following the deviation.

[0053] like Figure 4 As shown, the driving assembly includes a driving gear 8, a first gear ring 7 fixed to the outer cover 4, and a second gear ring 13 fixed to the rotating body 12. The driving gear 8 has a first gear surface 81 around its outer wall surface and a second gear surface 82 located on its bottom surface; when the driving gear 8 is in the first working point, the first gear surface 81 meshes with the second gear ring 13, and when the driving gear 8 is in the second working point, the second gear surface 82 meshes with the first gear ring 7. When the first gear surface 81 meshes with the second gear ring 13, the rotating body 12 is driven to rotate; when the second gear surface 82 meshes with the first gear ring 7, the outer cover 4 is driven to rotate, so that the protrusion 14 corresponds to the processed riveted column.

[0054] In this embodiment, the driving gear 8 is connected to a main shaft 9; the main shaft 9 is connected to a power mechanism that can drive the main shaft 9 to rotate, and the power mechanism is a servo motor. The power mechanism is connected to a lifting mechanism that can drive the power mechanism up and down. In this embodiment, the up and down lifting mechanism is preferably a screw lifting mechanism.

[0055] like Figure 4 As shown, an inner cover plate 11 is fixed on the rotating body 12, and an outer cover plate 16 is fixed on the outer cover body 4. The inner cover plate 11 and the outer cover plate 16 are concentric and clearance-matched with each other. The rotating body 12 is rotatably connected to the inner cover plate 11 through a second rotating member 20; a locking member 10 is fixed on the top of the tooling fastening rod 3, and the locking member 10 is tightly pressed against the inner cover plate 11. The locking member 10 and the tooling fastening rod 3 are preferably clamped together to achieve quick disassembly and assembly of the locking member 10 to increase the replacement rate of the split retaining frame 2 to be processed.

[0056] like Figure 3 and Figure 5As shown, a limiting assembly is provided on the outer cover plate 16, and the function of the limiting assembly is to limit the rotation position of the outer cover plate 16 so that the protrusion 14 corresponds to the riveting column or pocket of the split retainer 2. Specifically, the limiting assembly includes a waist-shaped guide hole 18, a tooling positioning column 17 and an elastic member 25, and the elastic member 25 is a spring. The waist-shaped guide hole 18 is formed on the outer cover plate 16; one end of the tooling positioning column 17 is inserted into the waist-shaped guide hole 18, and the other end is fixed to the inner cover body 6. The elastic member 25 is pre-embedded on one side of the middle part of the waist-shaped guide hole 18, and the end of the elastic member 25 is fixed with a positioning member 15, and the positioning member 15 is pressed against the side wall surface of the tooling positioning column 17. When the outer cover body 4 is in the initial position, the tooling positioning column 17 is located at the top position of the waist hole, and the protrusion 14 on the outer cover body 4 corresponds to the pocket of the split retainer 2. At this time, the riveting column of the split retainer 2 is processed. When the outer cover 4 is rotated, the waist-shaped guide hole 18 moves so that the tooling positioning column 17 located inside it moves from the top to the bottom. At this time, the raised portion 14 on the outer cover 4 corresponds to the riveted column position of the split retainer 2, and the pocket hole of the split retainer 2 is processed.

[0057] Working principle: First, place the split retainer 2 on the working fixed seat 1, move the outer cover 4, and make sure that the tooling positioning column 17 is located at the top position of the waist hole. Then lower the cover until it is sleeved on the lifting matching surface of the tooling fastening rod 3 and stop, and use the locking member 10 to lock the cover.

[0058] The tooling fastening rod 3 descends, and the spindle 9 and the power device descend synchronously, pressing on the split retainer 2. At this time, the external equipment starts milling the riveted column of the split retainer. The first gear surface 81 of the driving gear 8 drives the second gear ring 13 to rotate, and the second gear ring 13 drives the rotating body 12 to rotate, and the downward pulling force when the tooling fastening rod 3 drives the cover body to descend, and the rotating body 12 and the roller body 23 that rotates when the rotating body 12 rotates are evenly distributed on the cover body during rotation, so that the entire circumference of the cover body moves downward evenly and stably, preventing the cover body from deviating and causing damage to the split retainer 2.

[0059] When the main shaft 9 descends to the second working point, the second gear surface 82 of the driving gear 8 meshes with the first gear ring 7, driving the outer cover body 4 to rotate on the inner cover body 6, so that the protrusion 14 corresponds to the processed riveted column. At this time, the air avoidance notch portion 5 corresponds to the pocket hole of the split retainer 2, and the milling of the pocket hole of the split retainer begins.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A one-step positioning processing device for a split retainer, characterized in that: The device comprises a tool fixing seat (1) and a split retaining frame (2) arranged on the tool fixing seat (1); a tool fastening rod (3) is arranged at the center of the tool fixing seat (1); a cover body is fixed on the tool fastening rod (3); when the tool fastening rod (3) is raised or lowered, the cover body is detached from or buckled on the split retaining frame (2); the cover body comprises: An outer cover body (4), wherein a plurality of protrusions (14) are provided on the outer edge of the outer cover body (4), and a gap (5) is formed between two adjacent protrusions (14); The inner cover body (6) is fixed on the tool fastening rod (3) and is rotatably connected to the inner side of the outer cover body (4) via a third rotating member (24); a rotating body assembly is provided on the inner cover body (6), the rotating body assembly comprises a rotating body (12) and a roller body (23) provided at the bottom of the rotating body (12); the rotating body (12) is rotatably connected to the inner cover body (6) via a first rotating member (19); The driving assembly has a first working point and a second working point. When the driving assembly is at the first working point, the driving assembly drives the swivel assembly to rotate, so that the downward pulling force when the tooling fastening rod (3) drives the cover body to descend is evenly distributed on the cover body. When the driving assembly is at the second working point, the driving assembly drives the outer cover body (4) to rotate on the inner cover body (6), so that the plurality of protrusions (14) correspond one by one to the riveted columns or pockets of the split retaining frame (2).

2. A one-step positioning processing device for a split retainer according to claim 1, characterized in that: The drive assembly comprises: A driving gear (8), wherein the driving gear (8) is connected to a main shaft (9); A first gear ring (7) fixed to the outer cover body (4); The second gear ring (13) is fixed to the rotating body (12).

3. A one-step positioning processing device for a split retainer according to claim 2, characterized in that: The driving gear (8) has a first gear surface (81) surrounding its outer wall surface and a second gear surface (82) located on its bottom surface; when the driving gear (8) is in a first working point position, the first gear surface (81) meshes with the second gear ring (13), and when the driving gear (8) is in a second working point position, the second gear surface (82) meshes with the first gear ring (7).

4. The one-step positioning processing device for a split retainer according to claim 2, characterized in that: The main shaft (9) is connected to a power mechanism capable of driving the main shaft (9) to rotate, and the power mechanism is connected to a lifting mechanism capable of driving the power mechanism to move up and down.

5. The one-step positioning processing device for a split retainer according to claim 1 is characterized in that: An inner cover plate (11) is fixed on the rotating body (12), and an outer cover plate (16) is fixed on the outer cover body (4); the inner cover plate (11) and the outer cover plate (16) are concentric and have a clearance fit with each other; a locking piece (10) is fixed on the top of the tooling fastening rod (3), and the locking piece (10) is pressed against the inner cover plate (11); The rotating body (12) is rotatably connected to the inner cover plate (11) via a second rotating member (20).

6. A one-step positioning processing device for a split retainer according to claim 5, characterized in that: A limit assembly is provided on the outer cover plate (16), and the limit assembly comprises: A waist-shaped guide hole (18) formed on the outer cover plate (16); A tool positioning column (17), one end of which is inserted into the waist-shaped guide hole (18) and the other end of which is fixed to the inner cover body (6); An elastic member (25) is pre-buried in one side of the middle portion of the waist-shaped guide hole (18), a positioning member (15) is fixed to the end of the elastic member (25), and the positioning member (15) is pressed against the side wall surface of the tooling positioning column (17).

7. The one-step positioning processing device for a split retainer according to claim 1 is characterized in that: A roller body retaining frame (26) is fixed inside the rotating body (12), and the roller bodies (23) are limited in position and rotate inside the roller body retaining frame (26); the roller bodies (23) are distributed in an array inside the roller body retaining frame (26).

8. A one-step positioning processing device for a split retainer according to claim 1 or 7, characterized in that: A first end surface (121) and a second end surface (123) located at different levels are respectively formed on the inner side and the outer side of the bottom surface of the rotating body (12), and the first end surface (121) and the second end surface (123) are connected via an inclined surface (122); The roller body (23) comprises a first roller body (231) and a second roller body (232), wherein the first roller body (231) is located at the first end surface (121), and the second roller body (232) is located at the second end surface (123); wherein the length of the first roller body (231) is longer than that of the second roller body (232), and the diameter is smaller than that of the second roller body (232).

9. A one-step positioning processing device for a split retainer according to claim 8, characterized in that: The top surface of the inner cover body (6) is provided with a groove matched with the rotating body (12), and an annular plate (21) is arranged in the groove; the roller body (23) abuts against the annular plate (21); The annular plate (21) comprises a first table surface (211) and a second table surface (213) arranged in a stepped manner, wherein the first table surface (211) and the second table surface (213) are connected via an inclined table surface (212); the first roller body (231) acts on the first table surface (211), and the second roller body (232) acts on the second table surface (213).

10. The one-step positioning processing device for a split retainer according to claim 1, characterized in that: A lifting mating surface (22) is provided above the tooling fastening pull rod (3), and the bottom surface of the inner cover body (6) abuts against the lifting mating surface (22).

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